<template>
    <div>
        <!-- 面包屑导航区域 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>商品管理</el-breadcrumb-item>
			<el-breadcrumb-item>商品分类</el-breadcrumb-item>
		</el-breadcrumb>

        <!-- 卡片视图区域 -->
		<el-card>
            <el-row>
                <el-col>
                    <el-button type="primary" @click="showAddCateDialog">添加分类</el-button>
                </el-col>
            </el-row>

            <tree-table class="treeTable" :data="catelist" :columns="columns" 
            :selection-type="false" :expand-type="false" 
            :show-index="true" index-text="#" border :show-row-hover="false">
                <template slot="isok" slot-scope="scope">
                    <i class="el-icon-success" v-if="scope.row.cat_deleted == false" style="color:lightgreen"></i>
                    <i class="el-icon-error" v-else style="color:red"></i>
                </template>
                <template slot="order" slot-scope="scope">
                    <el-tag size="mini" v-if="scope.row.cat_level === 0">一级</el-tag>
                    <el-tag size="mini" type="success" v-if="scope.row.cat_level === 1">二级</el-tag>
                    <el-tag size="mini" type="warning" v-if="scope.row.cat_level === 2">三级</el-tag>
                </template>
                <template slot="opt">
                    <el-button type="primary" size="mini" icon="el-icon-edit">编辑</el-button>
                    <el-button type="danger" size="mini" icon="el-icon-delete">删除</el-button>
                </template>
            </tree-table>

            <!-- 分頁區域 这里的分页没实现，请参考users.vue-->
             <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加分类对话框 -->
        <el-dialog
        title="添加分类"
        :visible.sync="addDialogVisible"
        width="30%" @close="addDialogClosed">
        <!-- 主体区域 -->
        <el-form :model="addCateForm" status-icon :rules="addCateFormRules" ref="addCateFormRef"
         label-width="100px">
            <el-form-item label="分类名称" prop="cat_name">
                <el-input type="text" v-model="addCateForm.cat_name" autocomplete="off"></el-input>
            </el-form-item>
            <el-form-item label="父级分类" prop="cat_level">
               <el-cascader expand-trigger="hover" :options="parentCateList"
               :props="cascaderProps" v-model="selectedKeys" 
               @change="parentCateChanged" clearable change-on-select>
               </el-cascader>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser()">确 定</el-button>
        </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        return {
            queryInfo:{
                type:[],
                pagenum:0,
                pagesize:1
            },
            // 商品分类的数据列表
            catelist:[],
            total:0,
            columns:[{
                label:'分类名称',
                prop:'cat_name'
            },{
                label:'是否有效',
                // 表示 将当前列定义位模板列
                type:'template',
                // 表示 当前这一列使用模板名称
                template:'isok'
            },{
                label:'排序',
                // 表示 将当前列定义位模板列
                type:'template',
                // 表示 当前这一列使用模板名称
                template:'order'
            },{
                label:'操作',
                // 表示 将当前列定义位模板列
                type:'template',
                // 表示 当前这一列使用模板名称
                template:'opt'
            }],
            addDialogVisible : false,
            addCateForm:{
                cat_name:'',
                cat_pid:0,
                cat_level:0
            },
            addCateFormRules:{
               cat_name: [
                   {required: true, message: '请输入分类名称',trigger:'blur'}
                   ]
            },
            parentCateList:[],
            cascaderProps:{
                value:'cat_id',
                label:'cat_name',
                children:'children'
            },
            selectedKeys:[]
        }
    },
    created(){
        this.getCateList()
    },
    methods:{
        async getCateList(){
            const {data:res} = await this.$http.get("/vip/acategories/get",{params:this.queryInfo})
            console.log(res)
            if(res.meta.status !== 200)
            {
                return this.$message.error('获取商品分类失败')
            }
            this.catelist = res.data.cates
            this.total = res.data.total 
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getCateList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getCateList()
        },
        //添加分类
        showAddCateDialog(){
            this.getParentCateList()
            this.addDialogVisible = true
        },
        addDialogClosed(){
            this.$refs.addCateFormRef.resetFields()
            this.selectedKeys = []
            this.addCateForm.cat_level = 0
            this.addCateForm.cat_pid = 0
        },
        // 获取父级分类的数据列表
        async getParentCateList(){
            const {data :res} = await this.$http.get('/vip/acategories/get')
        },
        parentCateChanged(){

        }
    }    
}
</script>

<style lang="less" scoped>
.treeTable{
    margin-top: 15px;
}
</style>